1988112 has 80 divisors (see below), whose sum is σ = 6027392. Its totient is φ = 552960.

The previous prime is 1988101. The next prime is 1988113. The reversal of 1988112 is 2118891.

It is a self number, because there is not a number n which added to its sum of digits gives 1988112.

It is not an unprimeable number, because it can be changed into a prime (1988113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20448 + ... + 20544.

2^1988112 is an apocalyptic number.

1988112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1988112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3013696).

1988112 is an abundant number, since it is smaller than the sum of its proper divisors (4039280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1988112 is a wasteful number, since it uses less digits than its factorization.

1988112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176 (or 170 counting only the distinct ones).

The product of its digits is 1152, while the sum is 30.

The square root of 1988112 is about 1410.0042553127. The cubic root of 1988112 is about 125.7419763874.

The spelling of 1988112 in words is "one million, nine hundred eighty-eight thousand, one hundred twelve".